The problem we want to handle in this paper is vagueness.
A notion of space, which we basi- cally have, plays an important part in the fac- ulty of thinking and speech.
In this paper, we concentrate on a particular class of spatial de- scriptions, namely descriptions about positional relations on a two-dimensional space.
A theo- retical device we present in this paper is called the potential model The potential model pro- vides a means for accumulating from fragmen- tary information.
It is possible to derive max- imally plausible interpretation from a chunk of information accumulated in the model.
When new information is given, the potential model is modefied so that that new information is taken into account.
As a result, the interpre- tations with maximal plausibility may change.
A progr...